Premium MaterialDrill chuck is made of high quality metal material, which is durable, long service life and suitable for long working times. Ultra-durable construction meets the demands of frequent use.Strong ReliableThe keyless chuck provides a big improvement in precision and holds these tiny bits far more securely and in better alignment with the rotation of the tool, under high-speed rotation, it not only maintains stability but also improves work efficiency.Quick ChangeThe drill chuck fits into power tools more easily and securely. Easily convert your cordless power screwdriver into a drill to quickly switch between different tasks reducing the amount of time needed for a project.Wide ApplicationA wide range of clamp sizes, from 0.8 mm to 10mm, drill chuck is suitable for a variety of drill bits. Make the most of your current rotary hammer. Much cheaper than buying a second rotary drill. Quick and easy change for different drilling jobs,saves carrying two drills about.Detailed description:Specification:Product name: Drill ChuckMaterial: MetalColor: black + graysize:43*124mmFeature: self-tighten, quick changeApplication: impact driver, screwdriver, hammer drill, rotary tool.Note:1.Please allow 1-3cm measuring deviation due to manual measurement.2.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you Parts List:1* 0.8-10mm/ 1.5-13mm/2-13mm Drill Chuck 1* 1/2 Converter 1* 13mm Black Round Handle Connecting Rod 1* 13mm Black Hexagonal Handle Connecting Rod